Judd, J. Hewitt, 1899- United States pattern, experimental and trial pieces / by J. Hewitt Judd ; with the collaboration of Walter H. Breen, research [and] Abe Kossoff, valuations. - 2nd ed. - Racine, Wisc., : Whitman Pub. Co., 1962. - 260 p. : ill. ; 24 cm. LCCN: 62001888 Subjects--Topical Terms: Numismatics--United States.Coins, American. LC Class. No.: CJ1826 / .J8 1962